/**
 * #      1207
 * 名称   独一无二的出现次数
 * 链接   https://leetcode-cn.com/problems/unique-number-of-occurrences
 * 题解   [758](https://leetcode-cn.com/problems/unique-number-of-occurrences/solution)
 * 通过率 73.2%
 * 难道   简单
 */

